CN203103882U - Insulation bracing frame for live 10kV cable lead disconnection and connection operation - Google Patents

Abstract

The utility model discloses an insulation bracing frame for live 10kV cable lead disconnection and connection operation. The insulation bracing frame mainly comprises an insulation cross arm, and three lead fixing devices and a pole body fixing device which are fixed on the insulation cross arm, wherein two lead fixing devices are located at the two ends of the insulation cross arm, and the distance between the other lead fixing device and one end of the insulation cross arm is three-tenth of the length of the insulation cross arm; the three lead fixing devices are used for fixing upper and lower leads of a cable; and the pole body fixing device comprises a chain, a pole body support seat at a middle point of the length direction of the insulation cross arm, and a chain fixing device fixed with a concrete pole body. The insulation bracing frame avoids hanging swing of the leads effectively, prevents a safety accident damaging workers or equipment due to the fact that the upper and lower leads of the cable swing to touch an adjacent live body, conforms to a rule that the swing of the leads is avoided during live disconnection and connection of an equipment wire, such as an unloaded line, in a state grid power safety specification, is universal, overcomes the function singleness of a replacing tool in the prior art, and has the advantages of safety and high efficiency.

Description

The insulation bracing frame that is used for the operation of the charged breaking and connecting lead-in wire of 10 kv cables

Technical field

The utility model relates to distribution line, the insulation bracing frame of the upper and lower lead-in wire of attached cable when being specifically related to the operation of the charged breaking and connecting lead-in wire of 10 KV distribution cables.

Background technology

Because urban construction needs, and 10 KV distribution circuits use distribution cable in a large number, and the operation of breaking and connecting cable tail is increasing,, need to use live line working breaking and connecting cable tail at present for guaranteeing to user's uninterrupted power supply.When live line working breaking and connecting cable tail, often excessive from breaking and connecting point distance because of the upper and lower lead-in wire of cable, and upper and lower lead-in wire is longer, when live line working breaking and connecting cable tail, can not be effectively fixing because of lead-in wire, be suspended in the air, easily causing lead-in wire to touch and closing on electrified body, and there are great potential safety hazard in generation personnel or device security accident.

The utility model content

The purpose of this utility model is to provide a kind of can effectively fix three phase terminals and safe, light insulation bracing frame simultaneously.

This insulation bracing frame that is used for the operation of the charged breaking and connecting lead-in wire of 10 kv cables that the utility model provides, it mainly comprises insulator crossarm and the wire fixture and the shaft fixture that are fixed on the insulator crossarm; Described wire fixture has three covers, lay respectively at described insulator crossarm two ends and with an end wherein at a distance of 3/10ths places, be used for fixing the upper and lower lead-in wire of cable; Described shaft fixture comprises chain, is positioned at the shaft supporting base of described insulator crossarm length direction midpoint and the chain fixer of fixing with the cement pole shaft.

It is the insulated tube of rectangle that described insulator crossarm adopts cross section.

Described wire fixture comprises base, fixed chuck, movable slider, fastening screw mandrel; Base is fixed on the insulator crossarm, and fixed chuck is connected in the downside of base, and movable slider is connected on the fixed chuck, and fixed chuck comprises the plate hook that connects base plate and be connected in its side, and the outer end of plate hook is the snap ring of circular arc; Fastening screw mandrel passes described insulator crossarm, base, connection base plate fixedlys connected with movable slider, and there is rocking bar the upper end of fastening screw mandrel; Thickness direction one side of movable slider has the groove with plate hook width dimensions coupling, between the two by this groove matched in clearance, on the adjacent surface of movable slider and snap ring the circular groove consistent with snap ring arranged, the screwed hole with fastening screw mandrel coupling is arranged on the described connection base plate.

Described shaft supporting base is for adopting the A4 aluminium alloy to forge to beat the strip single piece that forms, its longitudinally have symmetry, be used for the technology through hole that chain passes.

Described chain fixer comprises supporting seat, regulating handle, and regulating handle is positioned at vertical end of supporting seat; The bottom surface of supporting seat has shaft groove, upper surface that longitudinally chain groove is arranged, in the entity in the chain groove outside through hole is arranged, one end of this through hole is a square hole, the other end is a circular hole, screw mandrel is arranged in the through hole, one end of screw mandrel has external diameter to be used to connect the connector of described chain less than square hole, and the length of square hole is greater than the length of connector; The other end of screw mandrel passes regulating handle, and the regulating handle inwall has the screwed hole with the screw mandrel coupling; The relative adjustment handle end of chain groove is useful on the fixedly bayonet socket of chain.

The utility model makes it to fix with the cement shaft by shaft fixture and the chain fixer that is installed on the insulator crossarm solid and reliablely, and utilization is installed in, and wire fixture fixes on the cable on the insulator crossarm, following lead-in wire, effectively preventing goes between is suspended in swing when aerial, avoided on the cable, following lead-in wire touches electrified body generation personnel or the device security accident of closing on because of swing, should take measures when having satisfied fixture wire such as charged disconnecting nonloaded line in the national grid electric power safety rules to prevent the to go between regulation of swing, guarantee the person and device security, improved operating efficiency.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present utility model.

Fig. 2 is the plan structure schematic diagram of Fig. 1.

Fig. 3 is the main TV structure schematic diagram of chain fixer among Fig. 2.

Fig. 4 is the schematic top plan view of Fig. 3.

Fig. 5 looks schematic diagram for the right side of Fig. 3.

Embodiment

This insulation bracing frame that is used for the operation of the charged breaking and connecting lead-in wire of 10 kv cables extremely shown in Figure 5 as Fig. 1, that the utility model provides, it mainly comprises insulator crossarm 1 and the wire fixture 2, the shaft fixture 3 that are fixed on the insulator crossarm 1; Wire fixture 2 has three covers, lay respectively at insulator crossarm 1 two ends and with an end wherein at a distance of 3/10ths places, be used for fixing the upper and lower lead-in wire of cable; The shaft supporting base 32 that shaft fixture 3 comprises chain 31, be positioned at insulator crossarm 1 length direction midpoint be used for being connected of insulator crossarm 1 and cement pole shaft and fastening with the fixing chain fixer 33 of cement pole shaft.It is the insulated tube of rectangle that insulator crossarm 1 adopts cross section.

Wire fixture 2 comprises base 21, fixed chuck 22, movable slider 23, fastening screw mandrel 24; Base 21 is fixed on the insulator crossarm 1, fixed chuck 22 is connected in the downside of base 21, movable slider 23 is connected on the fixed chuck 22, and fixed chuck 22 comprises the plate hook 222 that connects base plate 221 and be connected in its side, and the outer end of plate hook 222 is the snap ring of circular arc; Fastening screw mandrel 24 passes insulator crossarm 1, base 21, connect base plate 221 fixedlys connected with movable slider 23, and there is rocking bar 25 upper end of fastening screw mandrel 24; Thickness direction one side of movable slider 23 has the groove with plate hook 222 width dimensions coupling, between the two by this groove matched in clearance, on the adjacent surface of movable slider 23 and snap ring the circular groove consistent with snap ring arranged, connect the screwed hole that has on the base plate 221 with fastening screw mandrel 24 couplings.

Shaft supporting base 32 is for adopting the A4 aluminium alloy to forge to beat the strip single piece that forms, its longitudinally have symmetry, be used for the technology through hole 321 that chain passes.Adopt strap 34 supporting fixing during installation with insulator crossarm 1.

Chain fixer 33 comprises supporting seat 331, regulating handle 332, and regulating handle 332 is positioned at vertical end of supporting seat 331; The bottom surface of supporting seat 331 has shaft groove 333, upper surface that longitudinally chain groove 334 is arranged, in the entity in chain groove 334 outsides through hole is arranged, one end of this through hole is a square hole 339, the other end is a circular hole 338, screw mandrel 335 is arranged in the through hole, one end of screw mandrel 335 has external diameter to be used to connect the connector 336 of chain 31 less than square hole, and the length of square hole is greater than the length of connector 336; The other end of screw mandrel 335 passes regulating handle 332, and regulating handle 332 inwalls have the screwed hole with screw mandrel 335 couplings; Relative adjustment handle 332 ends of chain groove 334 are useful on the fixedly bayonet socket 337 of chain 31.

During assembling, respectively three cover wire fixtures 2 are individually fixed in the two ends of insulator crossarm 1 and apart from an end 3/10ths places wherein, shaft supporting base 31 are fixed in the midpoint of insulator crossarm 1 opposite side edge lengths direction.Chain and its fixture are assembled.

The utility model installation process is as follows:

1, earlier that insulator crossarm 1 and cement pole shaft is fastening.Concrete operations are as follows: wire fixture 2 and shaft supporting base 32 assembly parts and the chain 31 with insulator crossarm 1 moved on the square on one's body correct position of cement pole with chain fixer 33, then chain 31 is passed the technology through hole 321 on the shaft supporting base 32 on the insulator crossarm 1, utilize the fixedly direction of walking about of chain 31 of chain groove 334 again, it is hung on the bayonet socket 337 of fastener chain 31, rotate circular regulating handle 332 to tighten up chain 31, insulator crossarm 1 is firmly connected with the cement pole shaft.

2, attached cable lead-in wire.Specific operation process is as follows: the rocking bar 25 that rotates wire fixture 2 fastening screw mandrels 24 upper ends on the insulator crossarm 1 successively, movable slider 23 is moved upward, lead-in wire is put into the snap ring of fixed chuck, and reverse rotation rocking bar 25 is that movable slider 23 moves downward then, until compressing lead-in wire.

Claims (5)

1. An insulating support frame for 10 kV cable live disconnection and lead wire operation, it is characterized in that: it mainly includes an insulating cross arm and a lead wire fixing device and a shaft fixing device fixed on the insulating cross arm; There are three sets of lead wire fixing devices, which are respectively located at the two ends of the insulating cross arm and at a distance of three tenths from one end, and are used to fix the upper and lower leads of the cable; The rod shaft support seat at the midpoint of the length direction of the cross arm and the chain fixing device fixed with the cement rod shaft. 2. The insulating support frame for live disconnection and lead wire connection of 10 kV cables according to claim 1, characterized in that: the insulating cross-arm adopts an insulating tube with a rectangular cross section. 3. The insulating support frame for 10 kV cable live disconnection and lead wire connection work according to claim 1, characterized in that: the lead wire fixing device includes a base, a fixed chuck, a movable slider, and a fastening screw rod ;The base is fixed on the insulating cross arm, the fixed chuck is connected to the lower side of the base, the movable slider is connected to the fixed chuck, the fixed chuck includes the bottom plate and the plate hook connected to its side, and the outer end of the plate hook The upper part is an arc-shaped clasp; the fastening screw rod passes through the insulating cross arm, the base, the connecting bottom plate and is fixedly connected with the movable slider, and there is a rocker at the upper end of the fastening screw rod; one side of the movable slider in the thickness direction There is a groove matching the width of the plate hook on the side, and the gap fits between the two through the groove. There is an arc-shaped groove on the adjacent surface of the movable slider and the snap ring that is consistent with the snap ring. The connecting bottom plate There are threaded holes matching the fastening screw. 4. The insulating support frame for 10 kV cable live disconnection and lead wire connection work as claimed in claim 1, characterized in that: the shaft support seat is a long strip-shaped integral body made of A4 aluminum alloy A piece with longitudinally symmetrical process through-holes for the chain to pass through. 5. The insulating support frame for 10 kV cable live disconnection and lead wire connection work as claimed in claim 1, characterized in that: the chain fixing device includes a support base and an adjustment handle, and the adjustment handle is located at one longitudinal end of the support base ; The bottom surface of the support base has shaft grooves, the upper surface has chain grooves along the longitudinal direction, and there is a through hole in the entity outside the chain groove, one end of the through hole is a square hole, the other end is a round hole, and the through hole There is a screw rod, one end of the screw rod has an outer diameter smaller than a square hole for connecting the connector of the chain, the length of the square hole is greater than the length of the connector; the other end of the screw rod passes through the adjustment handle, and the inner wall of the adjustment handle has a Threaded holes for rod matching; chain groove opposite adjustment handle end has bayonet for securing chain.

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